/* * Copyright (C) 2018 vt@altlinux.org. All Rights Reserved. * * Contents licensed under the terms of the OpenSSL license * See https://www.openssl.org/source/license.html for details */ #include "gost_grasshopper_cipher.h" #include "gost_grasshopper_defines.h" #include "gost_grasshopper_math.h" #include "gost_grasshopper_core.h" #include "e_gost_err.h" #include "gost_lcl.h" #include #include #include #include #include #define T(e) if (!(e)) {\ ERR_print_errors_fp(stderr);\ OpenSSLDie(__FILE__, __LINE__, #e);\ } #define cRED "\033[1;31m" #define cDRED "\033[0;31m" #define cGREEN "\033[1;32m" #define cDGREEN "\033[0;32m" #define cNORM "\033[m" #define TEST_ASSERT(e) {if ((test = (e))) \ printf(cRED "Test FAILED\n" cNORM); \ else \ printf(cGREEN "Test passed\n" cNORM);} /* Test key from both GOST R 34.12-2015 and GOST R 34.13-2015. */ static const unsigned char K[32] = { 0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77, 0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef, }; /* Plaintext from GOST R 34.13-2015 A.1. * First 16 bytes is vector (a) from GOST R 34.12-2015 A.1. */ static const unsigned char P[] = { 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xff,0xee,0xdd,0xcc,0xbb,0xaa,0x99,0x88, 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a, 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00, 0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xee,0xff,0x0a,0x00,0x11, }; /* Extended plaintext from tc26 acpkm Kuznyechik test vector */ static const unsigned char P_acpkm[] = { 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88, 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A, 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00, 0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11, 0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22, 0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,0x33, 0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22,0x33,0x44, }; /* OMAC-ACPKM test vector from R 1323565.1.017-2018 A.4.1 */ static const unsigned char P_omac_acpkm1[] = { 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88, 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77, }; /* OMAC-ACPKM test vector from R 1323565.1.017-2018 A.4.2 */ static const unsigned char P_omac_acpkm2[] = { 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88, 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A, 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00, 0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11, 0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xEE,0xFF,0x0A,0x00,0x11,0x22, }; static const unsigned char E_ecb[] = { /* ECB test vectors from GOST R 34.13-2015 A.1.1 */ /* first 16 bytes is vector (b) from GOST R 34.12-2015 A.1 */ 0x7f,0x67,0x9d,0x90,0xbe,0xbc,0x24,0x30,0x5a,0x46,0x8d,0x42,0xb9,0xd4,0xed,0xcd, 0xb4,0x29,0x91,0x2c,0x6e,0x00,0x32,0xf9,0x28,0x54,0x52,0xd7,0x67,0x18,0xd0,0x8b, 0xf0,0xca,0x33,0x54,0x9d,0x24,0x7c,0xee,0xf3,0xf5,0xa5,0x31,0x3b,0xd4,0xb1,0x57, 0xd0,0xb0,0x9c,0xcd,0xe8,0x30,0xb9,0xeb,0x3a,0x02,0xc4,0xc5,0xaa,0x8a,0xda,0x98, }; static const unsigned char E_ctr[] = { /* CTR test vectors from GOST R 34.13-2015 A.1.2 */ 0xf1,0x95,0xd8,0xbe,0xc1,0x0e,0xd1,0xdb,0xd5,0x7b,0x5f,0xa2,0x40,0xbd,0xa1,0xb8, 0x85,0xee,0xe7,0x33,0xf6,0xa1,0x3e,0x5d,0xf3,0x3c,0xe4,0xb3,0x3c,0x45,0xde,0xe4, 0xa5,0xea,0xe8,0x8b,0xe6,0x35,0x6e,0xd3,0xd5,0xe8,0x77,0xf1,0x35,0x64,0xa3,0xa5, 0xcb,0x91,0xfa,0xb1,0xf2,0x0c,0xba,0xb6,0xd1,0xc6,0xd1,0x58,0x20,0xbd,0xba,0x73, }; static const unsigned char E_acpkm[] = { 0xF1,0x95,0xD8,0xBE,0xC1,0x0E,0xD1,0xDB,0xD5,0x7B,0x5F,0xA2,0x40,0xBD,0xA1,0xB8, 0x85,0xEE,0xE7,0x33,0xF6,0xA1,0x3E,0x5D,0xF3,0x3C,0xE4,0xB3,0x3C,0x45,0xDE,0xE4, 0x4B,0xCE,0xEB,0x8F,0x64,0x6F,0x4C,0x55,0x00,0x17,0x06,0x27,0x5E,0x85,0xE8,0x00, 0x58,0x7C,0x4D,0xF5,0x68,0xD0,0x94,0x39,0x3E,0x48,0x34,0xAF,0xD0,0x80,0x50,0x46, 0xCF,0x30,0xF5,0x76,0x86,0xAE,0xEC,0xE1,0x1C,0xFC,0x6C,0x31,0x6B,0x8A,0x89,0x6E, 0xDF,0xFD,0x07,0xEC,0x81,0x36,0x36,0x46,0x0C,0x4F,0x3B,0x74,0x34,0x23,0x16,0x3E, 0x64,0x09,0xA9,0xC2,0x82,0xFA,0xC8,0xD4,0x69,0xD2,0x21,0xE7,0xFB,0xD6,0xDE,0x5D, }; /* Test vector from R 23565.1.017-2018 A.4.2. * Key material from ACPKM-Master(K,768,3) for OMAC-ACPKM. */ static const unsigned char E_acpkm_master[] = { 0x0C,0xAB,0xF1,0xF2,0xEF,0xBC,0x4A,0xC1,0x60,0x48,0xDF,0x1A,0x24,0xC6,0x05,0xB2, 0xC0,0xD1,0x67,0x3D,0x75,0x86,0xA8,0xEC,0x0D,0xD4,0x2C,0x45,0xA4,0xF9,0x5B,0xAE, 0x0F,0x2E,0x26,0x17,0xE4,0x71,0x48,0x68,0x0F,0xC3,0xE6,0x17,0x8D,0xF2,0xC1,0x37, 0xC9,0xDD,0xA8,0x9C,0xFF,0xA4,0x91,0xFE,0xAD,0xD9,0xB3,0xEA,0xB7,0x03,0xBB,0x31, 0xBC,0x7E,0x92,0x7F,0x04,0x94,0x72,0x9F,0x51,0xB4,0x9D,0x3D,0xF9,0xC9,0x46,0x08, 0x00,0xFB,0xBC,0xF5,0xED,0xEE,0x61,0x0E,0xA0,0x2F,0x01,0x09,0x3C,0x7B,0xC7,0x42, 0xD7,0xD6,0x27,0x15,0x01,0xB1,0x77,0x77,0x52,0x63,0xC2,0xA3,0x49,0x5A,0x83,0x18, 0xA8,0x1C,0x79,0xA0,0x4F,0x29,0x66,0x0E,0xA3,0xFD,0xA8,0x74,0xC6,0x30,0x79,0x9E, 0x14,0x2C,0x57,0x79,0x14,0xFE,0xA9,0x0D,0x3B,0xC2,0x50,0x2E,0x83,0x36,0x85,0xD9, }; static const unsigned char P_acpkm_master[sizeof(E_acpkm_master)] = { 0 }; /* * Other modes (ofb, cbc, cfb) is impossible to test to match GOST R * 34.13-2015 test vectors exactly, due to these vectors having exceeding * IV length value (m) = 256 bits, while openssl have hard-coded limit * of maximum IV length of 128 bits (EVP_MAX_IV_LENGTH). * Also, current grasshopper code having fixed IV length of 128 bits. * * Thus, new test vectors are generated with truncated 128-bit IV using * canonical GOST implementation from TC26. */ static const unsigned char E_ofb[] = { /* OFB test vector generated from canonical implementation */ 0x81,0x80,0x0a,0x59,0xb1,0x84,0x2b,0x24,0xff,0x1f,0x79,0x5e,0x89,0x7a,0xbd,0x95, 0x77,0x91,0x46,0xdb,0x2d,0x93,0xa9,0x4e,0xd9,0x3c,0xf6,0x8b,0x32,0x39,0x7f,0x19, 0xe9,0x3c,0x9e,0x57,0x44,0x1d,0x87,0x05,0x45,0xf2,0x40,0x36,0xa5,0x8c,0xee,0xa3, 0xcf,0x3f,0x00,0x61,0xd5,0x64,0x23,0x54,0x5b,0x96,0x0d,0x86,0x4c,0xc8,0x68,0xda, }; static const unsigned char E_cbc[] = { /* CBC test vector generated from canonical implementation */ 0x68,0x99,0x72,0xd4,0xa0,0x85,0xfa,0x4d,0x90,0xe5,0x2e,0x3d,0x6d,0x7d,0xcc,0x27, 0xab,0xf1,0x70,0xb2,0xb2,0x26,0xc3,0x01,0x0c,0xcf,0xa1,0x36,0xd6,0x59,0xcd,0xaa, 0xca,0x71,0x92,0x72,0xab,0x1d,0x43,0x8e,0x15,0x50,0x7d,0x52,0x1e,0xcd,0x55,0x22, 0xe0,0x11,0x08,0xff,0x8d,0x9d,0x3a,0x6d,0x8c,0xa2,0xa5,0x33,0xfa,0x61,0x4e,0x71, }; static const unsigned char E_cfb[] = { /* CFB test vector generated from canonical implementation */ 0x81,0x80,0x0a,0x59,0xb1,0x84,0x2b,0x24,0xff,0x1f,0x79,0x5e,0x89,0x7a,0xbd,0x95, 0x68,0xc1,0xb9,0x9c,0x4d,0xf5,0x9c,0xc7,0x95,0x1e,0x37,0x39,0xb5,0xb3,0xcd,0xbf, 0x07,0x3f,0x4d,0xd2,0xd6,0xde,0xb3,0xcf,0xb0,0x26,0x54,0x5f,0x7a,0xf1,0xd8,0xe8, 0xe1,0xc8,0x52,0xe9,0xa8,0x56,0x71,0x62,0xdb,0xb5,0xda,0x7f,0x66,0xde,0xa9,0x26, }; static const unsigned char iv_ctr[] = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }; /* Truncated to 128-bits IV from GOST examples. */ static const unsigned char iv_128bit[] = { 0x12,0x34,0x56,0x78,0x90,0xab,0xce,0xf0, 0xa1,0xb2,0xc3,0xd4,0xe5,0xf0,0x01,0x12 }; /* Universal IV for ACPKM-Master. */ static const unsigned char iv_acpkm_m[] = { 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }; static const unsigned char MAC_omac[] = { 0x33,0x6f,0x4d,0x29,0x60,0x59,0xfb,0xe3 }; static const unsigned char MAC_omac_acpkm1[] = { 0xB5,0x36,0x7F,0x47,0xB6,0x2B,0x99,0x5E,0xEB,0x2A,0x64,0x8C,0x58,0x43,0x14,0x5E, }; static const unsigned char MAC_omac_acpkm2[] = { 0xFB,0xB8,0xDC,0xEE,0x45,0xBE,0xA6,0x7C,0x35,0xF5,0x8C,0x57,0x00,0x89,0x8E,0x5D, }; struct testcase { const char *name; const EVP_CIPHER *(*type)(void); int stream; const unsigned char *plaintext; const unsigned char *expected; size_t size; const unsigned char *iv; size_t iv_size; int acpkm; }; static struct testcase testcases[] = { { "ecb", cipher_gost_grasshopper_ecb, 0, P, E_ecb, sizeof(P), NULL, 0, 0 }, { "ctr", cipher_gost_grasshopper_ctr, 1, P, E_ctr, sizeof(P), iv_ctr, sizeof(iv_ctr), 0 }, { "ctr-no-acpkm", cipher_gost_grasshopper_ctracpkm, 1, P, E_ctr, sizeof(P), iv_ctr, sizeof(iv_ctr), 0 }, { "ctracpkm", cipher_gost_grasshopper_ctracpkm, 1, P_acpkm, E_acpkm, sizeof(P_acpkm), iv_ctr, sizeof(iv_ctr), 256 / 8 }, { "acpkm-Master", cipher_gost_grasshopper_ctracpkm, 0, P_acpkm_master, E_acpkm_master, sizeof(P_acpkm_master), iv_acpkm_m, sizeof(iv_acpkm_m), 768 / 8 }, { "ofb", cipher_gost_grasshopper_ofb, 1, P, E_ofb, sizeof(P), iv_128bit, sizeof(iv_128bit), 0 }, { "cbc", cipher_gost_grasshopper_cbc, 0, P, E_cbc, sizeof(P), iv_128bit, sizeof(iv_128bit), 0 }, { "cfb", cipher_gost_grasshopper_cfb, 0, P, E_cfb, sizeof(P), iv_128bit, sizeof(iv_128bit), 0 }, NULL }; static void hexdump(const void *ptr, size_t len) { const unsigned char *p = ptr; size_t i, j; for (i = 0; i < len; i += j) { for (j = 0; j < 16 && i + j < len; j++) printf("%s%02x", j? "" : " ", p[i + j]); } printf("\n"); } static int test_block(const EVP_CIPHER *type, const char *name, const unsigned char *pt, const unsigned char *exp, size_t size, const unsigned char *iv, size_t iv_size, int acpkm) { EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new(); const char *standard = acpkm? "R 23565.1.017-2018" : "GOST R 34.13-2015"; unsigned char c[size]; int outlen, tmplen; int ret = 0, test; OPENSSL_assert(ctx); printf("Encryption test from %s [%s] \n", standard, name); /* test with single big chunk */ EVP_CIPHER_CTX_init(ctx); T(EVP_CipherInit_ex(ctx, type, NULL, K, iv, 1)); T(EVP_CIPHER_CTX_set_padding(ctx, 0)); memset(c, 0, sizeof(c)); if (acpkm) T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL)); T(EVP_CipherUpdate(ctx, c, &outlen, pt, size)); T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen)); EVP_CIPHER_CTX_cleanup(ctx); printf(" c[%d] = ", outlen); hexdump(c, outlen); TEST_ASSERT(outlen != size || memcmp(c, exp, size)); ret |= test; /* test with small chunks of block size */ printf("Chunked encryption test from %s [%s] \n", standard, name); int blocks = size / GRASSHOPPER_BLOCK_SIZE; int z; EVP_CIPHER_CTX_init(ctx); T(EVP_CipherInit_ex(ctx, type, NULL, K, iv, 1)); T(EVP_CIPHER_CTX_set_padding(ctx, 0)); memset(c, 0, sizeof(c)); if (acpkm) T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL)); for (z = 0; z < blocks; z++) { int offset = z * GRASSHOPPER_BLOCK_SIZE; int sz = GRASSHOPPER_BLOCK_SIZE; T(EVP_CipherUpdate(ctx, c + offset, &outlen, pt + offset, sz)); } outlen = z * GRASSHOPPER_BLOCK_SIZE; T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen)); EVP_CIPHER_CTX_cleanup(ctx); printf(" c[%d] = ", outlen); hexdump(c, outlen); TEST_ASSERT(outlen != size || memcmp(c, exp, size)); ret |= test; /* test with single big chunk */ printf("Decryption test from %s [%s] \n", standard, name); EVP_CIPHER_CTX_init(ctx); T(EVP_CipherInit_ex(ctx, type, NULL, K, iv, 0)); T(EVP_CIPHER_CTX_set_padding(ctx, 0)); memset(c, 0, sizeof(c)); if (acpkm) T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL)); T(EVP_CipherUpdate(ctx, c, &outlen, exp, size)); T(EVP_CipherFinal_ex(ctx, c + outlen, &tmplen)); EVP_CIPHER_CTX_cleanup(ctx); EVP_CIPHER_CTX_free(ctx); printf(" d[%d] = ", outlen); hexdump(c, outlen); TEST_ASSERT(outlen != size || memcmp(c, pt, size)); ret |= test; return ret; } static int test_stream(const EVP_CIPHER *type, const char *name, const unsigned char *pt, const unsigned char *exp, size_t size, const unsigned char *iv, size_t iv_size, int acpkm) { EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new(); const char *standard = acpkm? "R 23565.1.017-2018" : "GOST R 34.13-2015"; int ret = 0, test; int z; OPENSSL_assert(ctx); /* Cycle through all lengths from 1 upto maximum size */ printf("Stream encryption test from %s [%s] \n", standard, name); for (z = 1; z <= size; z++) { unsigned char c[size]; int outlen, tmplen; int sz = 0; int i; EVP_CIPHER_CTX_init(ctx); EVP_CipherInit_ex(ctx, type, NULL, K, iv, 1); EVP_CIPHER_CTX_set_padding(ctx, 0); memset(c, 0xff, sizeof(c)); if (acpkm) T(EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_KEY_MESH, acpkm, NULL)); for (i = 0; i < size; i += z) { if (i + z > size) sz = size - i; else sz = z; EVP_CipherUpdate(ctx, c + i, &outlen, pt + i, sz); OPENSSL_assert(outlen == sz); } outlen = i - z + sz; EVP_CipherFinal_ex(ctx, c + outlen, &tmplen); EVP_CIPHER_CTX_cleanup(ctx); test = outlen != size || memcmp(c, exp, size); printf("%c", test ? 'E' : '+'); ret |= test; } printf("\n"); TEST_ASSERT(ret); EVP_CIPHER_CTX_free(ctx); return ret; } static int test_mac(const char *name, const char *from, const EVP_MD *type, int acpkm, int acpkm_t, const unsigned char *pt, size_t pt_size, const unsigned char *mac, size_t mac_size) { EVP_MD_CTX *ctx = EVP_MD_CTX_new(); unsigned char md_value[EVP_MAX_MD_SIZE]; unsigned int md_len; int test; OPENSSL_assert(ctx); printf("%s test from %s\n", name, from); EVP_MD_CTX_init(ctx); T(EVP_DigestInit_ex(ctx, type, NULL)); if (EVP_MD_CTX_size(ctx) != mac_size) { /* strip const out of EVP_MD_CTX_md() to * overwrite output size, as test vector is 8 bytes */ printf("Resize result size from %d to %zu\n", EVP_MD_CTX_size(ctx), mac_size); T(EVP_MD_meth_set_result_size((EVP_MD *)EVP_MD_CTX_md(ctx), mac_size)); } T(EVP_MD_meth_get_ctrl(EVP_MD_CTX_md(ctx))(ctx, EVP_MD_CTRL_SET_KEY, sizeof(K), (void *)K)); if (acpkm) T(EVP_MD_meth_get_ctrl(EVP_MD_CTX_md(ctx))(ctx, EVP_CTRL_KEY_MESH, acpkm, acpkm_t ? &acpkm_t : NULL)); T(EVP_DigestUpdate(ctx, pt, pt_size)); T(EVP_DigestFinal_ex(ctx, md_value, &md_len)); EVP_MD_CTX_free(ctx); printf(" MAC[%u] = ", md_len); hexdump(md_value, md_len); TEST_ASSERT(md_len != mac_size || memcmp(mac, md_value, md_len)); return test; } int main(int argc, char **argv) { int ret = 0; const struct testcase *t; for (t = testcases; t->name; t++) { ret |= test_block(t->type(), t->name, t->plaintext, t->expected, t->size, t->iv, t->iv_size, t->acpkm); if (t->stream) ret |= test_stream(t->type(), t->name, t->plaintext, t->expected, t->size, t->iv, t->iv_size, t->acpkm); } /* preload cbc cipher for omac set key */ EVP_add_cipher(cipher_gost_grasshopper_cbc()); ret |= test_mac("OMAC", "GOST R 34.13-2015", grasshopper_omac(), 0, 0, P, sizeof(P), MAC_omac, sizeof(MAC_omac)); ret |= test_mac("OMAC-ACPKM", "R 1323565.1.017-2018 A.4.1", grasshopper_omac_acpkm(), 32, 768 / 8, P_omac_acpkm1, sizeof(P_omac_acpkm1), MAC_omac_acpkm1, sizeof(MAC_omac_acpkm1)); ret |= test_mac("OMAC-ACPKM", "R 1323565.1.017-2018 A.4.2", grasshopper_omac_acpkm(), 32, 768 / 8, P_omac_acpkm2, sizeof(P_omac_acpkm2), MAC_omac_acpkm2, sizeof(MAC_omac_acpkm2)); if (ret) printf(cDRED "= Some tests FAILED!\n" cNORM); else printf(cDGREEN "= All tests passed!\n" cNORM); return ret; }